Approximate tolls Fort Pierce to homestead Fla Tpike

Tried the toll calculator for Fla Tpike couldn't get it to work. Getting on Turnpike around fort Pierce going to Key largo. I guess Tpike ends at or near Homstead,
Looking to put cash on a Sun Pass but have no idea how much will cover round trip.
Class A 2 axel no toad.
Thanks any info.